Rhythm InterpretationPregunta 34 de 100
What is the correct way to determine whether a ventricular rhythm is regular?
a.Compare the height of each R wave across the strip
b.Measure the R-to-R intervals across the strip and see whether they are equal
c.Count the number of P waves in six seconds
d.Compare each PR interval to 0.20 second
Explicación
Ventricular regularity is judged by marching out the R-to-R intervals with calipers or paper and checking whether they stay the same; atrial regularity is judged the same way using P-to-P intervals. R wave height reflects voltage and lead placement, not regularity. Counting P waves gives the atrial rate, and measuring PR intervals evaluates AV conduction.
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